大约有 45,000 项符合查询结果（耗时：0.0630秒） [XML]
Add a default value to a column through a migration
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If you need reversible migrations, put this in an up block rather than a change block. You can leave the down block empty. It won't revert the table to the original condition but the migration can be rolled back.
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Avoiding SQL injection without parameters
...23,456? Do your servers (app-server and db-server) agree with each-other?
If the risk factor isn't convincing to them, how about performance? The RDBMS can re-use the query plan if you use parameters, helping performance. It can't do this with just the string.
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How to delete a remote tag?
...ush origin :tagname
Or, more expressively, use the --delete option (or -d if your git version is older than 1.8.0):
git push --delete origin tagname
Note that git has tag namespace and branch namespace so you may use the same name for a branch and for a tag. If you want to make sure that you canno...
What is DOCTYPE?
...mode.
The kicker here is, that quirks mode in Internet Explorer is quite different from quirks mode in Firefox (and other browsers); meaning that you'll have a much harder job, trying to ensure your page renders consistently with all browsers if the quirks mode is triggered, than you will if it is ...
How to output numbers with leading zeros in JavaScript [duplicate]
... but is there a way to round left of the decimal? for example 5 becomes 05 if I specify 2 places
6 Answers
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Use JAXB to create Object from XML String
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Could you expand this answer to include if the "xml string here" includes a SOAP envelope?
– JWiley
Mar 11 '14 at 14:25
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Disable copy constructor
... unnecessary and deleting them prevents some cases of unexpected behavior. If a situation occurs where a copy ctor may be needed, determine if it can be done with move semantics. If this is undesirable, provide an implementation for both(!) the copy ctor and assignment operator. Whether this is a go...
How do I call the default deserializer from a custom deserializer in Jackson
... StaxMan already suggested you can do this by writing a BeanDeserializerModifier and registering it via SimpleModule. The following example should work:
public class UserEventDeserializer extends StdDeserializer<User> implements ResolvableDeserializer
{
private static final long serialVersi...
Trim last character from a string
... definition removing only last character from string is bad solution.
So if we want to "Trim last character from string" we should do something like this
Example as extension method:
public static class MyExtensions
{
public static string TrimLastCharacter(this String str)
{
if(String....
How to get all options of a select using jQuery?
...JavaScript operations require jQuery. jQuery is a matter of choice to simplify JS operations.
– ruuter
Feb 12 '14 at 11:14
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